//Copyright 2008 Kristian Gundry And Rune Juhl-Petersen
//This file is part of Plain.

//Plain is free software: you can redistribute it and/or modify
//it under the terms of the GNU Lesser General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//any later version.

//Plain is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Lesser General Public License for more details.

//You should have received a copy of the GNU Lesser General Public License
//along with Plain.  If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Collections.Generic;
using System.Text;

namespace Plain.Search{
    /// <summary>
    /// This is a list of <see cref="Criteria"/>s that enables combinations of <see cref="Criteria"/>s
    /// </summary>
	public class CriteriaCollection : Criteria{
		private CriteriaCollectionType type = CriteriaCollectionType.AllOf;
		private IList<Criteria> criterias = new List<Criteria>();
        /// <summary>
        /// The <see cref="Criteria"/>s contained
        /// </summary>
		public IList<Criteria> Criterias{
			get { return criterias; }
            set { criterias = value; }
		}
        /// <summary>
        /// How the <see cref="Criteria"/>s are joined
        /// </summary>
		public CriteriaCollectionType Type{
			get { return type; }
			set { type = value; }
		}
	}
    /// <summary>
    /// Defines how values of a <see cref="CriteriaList"/> are joined
    /// </summary>
	public enum CriteriaCollectionType{
        /// <summary>
        /// All of the <see cref="Criteria"/>s must be fulfilled. The 'and' operator
        /// </summary>
		AllOf,
        /// <summary>
        /// One of the <see cref="Criteria"/>s must be fulfilled. The 'or' operator
        /// </summary>
		OneOf
	}
    /// <summary>
    /// Dummy class used for initializing lists in Xaml
    /// </summary>
    public class CriteriaList : List<Criteria> { }
}
